[4e] Infernal language?

[Dentarthur]

The writeup on the Book Imp familiar (Arcane Power) says you can write and speak Infernal. However, I've never seen Infernal as a language mentioned anywhere else, and the 4e PHB says devils speak Supernal. Is this a goof or a separate language?

[NecroRebel]

The writeup on the Book Imp familiar (Arcane Power) says you can write and speak Infernal. However, I've never seen Infernal as a language mentioned anywhere else, and the 4e PHB says devils speak Supernal. Is this a goof or a separate language?

It's a goof. There's been errata since, changing the Book Imp to grant Supernal.

[Dentarthur]

Thanks. I suppose I should go grab the latest errata, now that I think about it.